# -*- coding: utf-8 -*-

#
# fusion.http.Proxy
#
# Copyright 2008 Helsinki Institute for Information Technology
# and the authors.
#
# Authors: Harri Hämäläinen <hhamalai@iki.fi>
#

# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation files
# (the "Software"), to deal in the Software without restriction,
# including without limitation the rights to use, copy, modify, merge,
# publish, distribute, sublicense, and/or sell copies of the Software,
# and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

from fusion.http.FusionApp import FusionApp, Response
import fusion.http.wsgiserver

class Proxy(FusionApp):
    '''
    Generates proxy auto-config (PAC) for browsers
    '''
    def do_GET(self):
        host_info = fusion.http.wsgiserver.host_endpoint()
        config = '''
    function FindProxyForURL(url, host)
    {
        var lhost;
        lhost = host.toLowerCase();
        if (shExpMatch(lhost, "*.hexlabel.net") || shExpMatch(lhost, "hexlabel.net"))
            return "PROXY %s:%s";
        return "DIRECT";
    }
    ''' % (host_info[0], host_info[1])
        response = Response()
        response.append_output(config)
        return response

